Movable hoisting device



May 1s, 1923.

` v F. J. BRYANT MOVABLE HOISTING DEVICE Filed April 5,h 1920 f l e nv Patented May 15, 1923.

`ITED STTES 1,454,881 PATENT OFFICE.

FRANK `I.BIRYAN'1,l OF WEST BROOKFIELD, MASSACHUSETTS.

MOVABLE HOISTING DEVICE.-

, Application filed April 3, 1920. Serial No. 371,040.

' which the following is a specification.

This invention relates to a hoisting device` or small crane for use in factories, garages, and other places where heavy parts have to be lifted out of machines and set into them. It is particularly' adapted for use in the ordinary automobile garage for lifting out the motor and other parts and replacing them. Y Y

The principal objects of the invention are to provide a crane or hoisting device of that character formed of structural iron parts and therefore capable of being made very strong without heavy expense; to provlde novel 'constructions for ljoining the structural iron parts in such a way as to produce very strong joints; to provide a construction which will permit of the moving of the,-

suspended vertically movable load along an I beam or like track at the top in one direction; and to provide for the movement of the entire hoisting device in a direction at right angles thereto, thus providing umversal Vmotion of the load. l

Further objects and advantages of the invention and features of construction will be described below.

Reference is to be had to the accompanyin drawings, in whichiig. 1 is a side view of a hoisting dev1ce constructed in accordance with this invention Fig. 4 is a horizontal sectional/view of the Asame on the line 4.--4 of Fig. 3;

Fig. 5 is a vertical central sectional view of the upper end of the supporting upr1ght l at one end of the hoisting dev1ce; 1

Fig. 6 is a sectional view of the cast block which is inserted to form a part of the joint important feature of this invention. Foron the line 6-6 of Fig. 3.

Fig. 7 is a plan of one end of the base and castor support,

Fig. 8 is a sectional view thereof on the line 88 of Fig. 7 and showing the castor in inoperative position, and

Fig. 9 is an end view. of a modification.

The invention is shown as comprising two 11p-rights 10 and 11, constituting the entire supporting structure, formed of ordinary lron piping. Each of these is mounted on a horizontal base 12 having side flanges 12, a U-bar beingl used preferably. The pipe is bolted vor riveted to these two side flanges at their center and rests on the bottom web.

Braces 13 are shown riveted to the pipe above andto the base below.

In order to make the hoisting device readily movable in whatv may be 'considered a transverse direction each vbase is' provided with a slot at A14 at each end. Backof this is a hinge rivet 15. above the bottom ofthe base 12 and on this rivetis pivotally mounted A a' frame 16. This frame has a shaft 17 passing through it with a wheel or castor 18 freely rotatable on the'shaft and located in, Ia slot 19 in the frame. The frame 16 is provided with a loose pin 20 which is adapted to pass through perforationsinjthe sides 12. When the parts are in the position shown at the left of Fig. 2, the pin 20 is in placeV in the' perforations and the wheel-.or castor 18 extends below the bottom of the U-bar constituting the base 12. When all four j castors 18 are in this position, the four pins 20 positively hold them there and thus there are four castors or rollers on which the entire device can be moved about. However, if it is not desired -to use the castors the four pins 20 are withdrawn and then the bases rest on their own lower surfaces and the castors are rendered inoperative for the time-being.

They simply rest by gravity on the floor as shown in Fig. 8. i v

The up-rights 10 and 11 support at the top an I-beam 21 on which runs a roll 22, provided with a wheel 23 'preferably provided with teeth and carrying a shackle 24 suspended from the' axis thereof. A chain '25 is used as is well understood for moving this device along the I-beam, and supporting the load which can be carried back and forth in this way and lifted. c

The method of connecting the I-beam with the up-right pipes 10 and 1-1 constitutes an is shown as provided with a vertical slot 30 opening down from its end. This is the only modification required-in the pipe except lo that Aperforations 31 are put through for the --beam. Preferably the top of the pipe is shaped away on a slant at 33 to fit the slantl ing lower surfaces of the upper Hanges of the -beam.

An additional element is introduced here consisting of a pair of semi-cylindrical filling blocks 34 which may be inthe form of lconditions is desirable. the pipe 11 is split diametrically at 40 for a simple castings introduced on the two sides of the web of the -beam to lill in the space between the web and the internal surface of the pipe. They are preferably perforated at 35 to receive bolts or rivets 36 to fasten the parts together. Although these two semi-cylindrical blocks, can be made separately and extend merely from the lower surface of the upper flange oi the I-beam to the bottom thereof, they are made more stable by forming them in one piece as a single casting extending down as shown in Fig. 3 below the bottom of the I-beam. Thus the solid cylindrical part 37 will extend down into the pipe a distance below the -beam commensurate with the height of the -beam. This is the preferred construction and a third bolt 38 is passed through this part 37 of the filling block, thus furnishing a guide rmly secured both to the -beam andy to the pipe for preventing the joint between the two from working back and forth.

in fact, this furnishes an extremely strong joint capable of resisting all pressure to which it may be subjected in ordinary ,usge

he other end of the hoisting device can be formed in exactly the same way and as that is obvious, l'. have introduced a modifi cation into the drawings by arranging the other end for adjustment which under some For. this purpose,

considerable distance down from its upper end. The two upper ends thus formed'are shaped by proper processes to provide jaws 41 for gripping the lower flange of' the I- beam, to prevent the parts getting out of alignment. A bolt 42 is passed through the two halves of the pipe just below the I-beam to clamp the two halves together against the opposite ends of the lower flange. By loosening the bolt, the -position of the up-right 1.1 ca n be changed as indicated in dotted lines 1n Fig. 1 for any purpose which may be desired such as avoiding machinery located below.

lt willhe seen that the invention lconstitutes a simple, convenient and comparatively inexpenslve small crane, sultable for use in many places and that the joints between the -beam and pipes are rigid but easily removable, and that a simple convenient way is' provlded for makin the whole device transportable in a direction transverse to the direction in which the load is moved on the crane itself. By utilizing well known .structural iron shapes easily obtained in the market a very great saving is secured.

In the form shown in Fig. 9 the pipe 11 is not split but left solid and clamping plates 45 are secured on opposite sides by bolts 46 to hold it firmly to the I-beam 21.

Although l have illustrated and described only a single form of the invention, l am aware of the fact that modifications can be made therein by any person skilled in the art without departing from the scope of the invention as expressed in the claims.

Therefore l do not wish to be limited to all the details of construction herein shown and described, but what l do claim is 1. in a device of the character described, the combination with a pair of up-rights, each consisting of a piece of pipe, and a horizontal -beam at the top, one of said pipes being split down at the top diametrically to provide jaws for securing it to the lower flange of the l-beam, of removable means for holding said jaws clamped against said flange whereby said up-ri'ght can be moved along the flange.

2. ln a device of the character described, the combination with an up-right consisting of a piece of pipe, of a horizontal I-beam at the top, the l-beam constituting a track `for a lifting device,l and having the end of `its lower flange cut away to receive the pipe, the upper end of said pipe being provided with a slotA for receiving the web of the -beam so that the upper flange will rest on with a slot for receiving the web of the beam so that the upper flange will rest on top of said pipe, and a filling piece' between the web and the pipe fitting against the surface thereof and extending below the I-beam to guide the l-beam with respect to the pipe and prevent a rocking motion at the joint.

4. In a device of the character described,

the combination with a pair of up-rights, each consisting of a piece of pipe and a horizontal I-beam at the top, the I-beam constituting afhorizontal track for a liftin device, and having at the end its lower Hnge cut away to receive the pipe, the upper end of said pipe being provided with a slot for receiving the web of the I-beam so that the upper ange. will rest on top of said pipe, a filling pieceibetween the web and the pipe extending below the I-beam to prevent a rocking motion at the joint, means extending through the pipe, filling piece, and web for holding thepipe and I-beam together,

and means also extending through the pipe and lling piece below the I-beam'for the same purpose.

5. In a device -of the character described,

the combination with a pair of up-rights,

consisting of a piece of pipe and a horizontal- I-beam at the top, of a joint rigidly supported thereby, one of said pipes having jaws for securing it to the lower flange of the I-beam, and removable means for holding said jaws clamped against said flange whereby said up-right can be moved along the ange. j y In testimony whereof I have hereunto allixed my signature.

n FRANK J. BRYANT. 

